Timeless design and modern aesthetics meet in these Carrera CA156/V eyeglasses for men. The round rims are made in acetate, a lightweight, plant-based plastic that’s sturdy and durable. The ultra-slim temples are crafted in strong, corrosion-resistant metal with comfort coated tips that widen for stability. The flexible spring hinges retain their initial adjustment and balance for a secure fit. The keyhole bridge distributes the weight of the rims evenly on the sides of the nose for comfort, and lends a vintage vibe to these Carrera glasses.